i-70 over sr 121 contractor meeting - indiana...mar 04, 2016 · pre-bid meeting march 4, 2016...

I-70 over SR 121Pre-Bid Meeting

March 4, 2016

Slide 1

Meeting Objectives

Solicit feedback from General Contractors and

Specialty Contractors

Share Preliminary Construction Details (60%

Plans)

Solidify Design Concept for Final Plan

Development

Slide 2

Project Objectives

Safe Project

During Construction

In Service

Successful Project

Completed on time, according to plan and within budget

Learn from a “conventional” (non-Milton Madison) ABC

project for future implementation

Positive experience for Owner, User and Contractor

Slide 3

Project Objectives

Accelerated Construction Schedule

Minimize User Cost

Minimize MOT Cost

Other states are focusing on this type of work as the

primary interstate replacement method

Slide 4

Current Plan Set

Finalized Details

Limits of Construction along I-70

Limits of Construction along SR 121

Interstate Lane Closure Exception – 13 days per MOT

Phase

Maintenance of Traffic (mostly)

Superstructure Geometry

Superstructure Type

Slide 5

Current Plan Set

Dual Design (Bid Option)

Superstructure Installation Method

UDOT 4500 South over I-215 ODOT OR 213 over Washington St.

SPMT(Self-Propelled Modular Transporters) Slide-In

Slide 6

Current Plan Set

Details Under Development

Foundation Type

Substructure Configuration

Bridge will be in service during construction of

substructure

Slide 7

Contract Structure

Design Bid Build

A + B

A = Construction Cost

B = User Cost for I-70 daytime closures (per hour)

B = User Cost for SR 121 when 1 lane is not provided

(per day)

Monetary amounts still under development

Slide 8

Project Site

I-70 over SR 121 just outside of Richmond

Slide 9

Project Site

High bedrock 3’ – 9’ below surface

Bridge staging area

(BSA) in SE corner

Overhead Utilities on

west edge of project

Slide 10

Project Site

High bedrock 3’ – 9’ below surface

Bridge staging area

(BSA) in SE corner

Overhead Utilities on

west edge of project

Slide 11

Existing Structure

Simple Span Steel Beam with RC Girder Approach

Spans

Built in 1959

27.15 Deg. Skew

End Bent on Piles

Pier on Spread

Footing

Slide 12

Existing Structure

Built Horizontally in Wrong Location

41’-3” instead of 45’-8”

Slide 13

Constructability Discussion

Maintenance of Traffic/Duration

Construction Staging

Substructure

Foundation

Wingwalls

Closure Pours

Slide 14

Maintenance of Traffic

Finalized (mostly)

Pavement Design under development

Lane Closure Exception for 13 days per closure

Begins Friday after 9 p.m.

Ends Second Friday at 6 a.m.

For example

Close 9:00 p.m. Friday 10/6/17

Open 5:59 a.m. Friday 10/20/17

Slide 15


Phase I & Phase II – Shoulder Strengthening

Slide 16


Adjacent Bridges Cause Complications

Slide 17


Shoulder Strengthening – 3000 ft. (3600 ft. barrier)

Temporary Traffic Barrier (currently shown)?

Two lanes of traffic open

Can work during day

Length of barrier required

Barrel Drop with Lane Closure?

Must be in conformance with Lane Closure Policy

Not a “Critical Path” item

Slide 18


Phase III – Not Allowed in June, July or August

Maximum Duration of 13 Days

Slide 19

Project Site

Phase IV – Reset to Normal

Slide 20


Phase V – Not Allowed in June, July or August

Maximum Duration of 13 Days

Slide 21


Coordination

Anticipate Back-ups

Fluid Maintenance of Traffic Alerts

Coordination with Ohio

Public Outreach

Slide 22

Construction Staging - SPMT

BSA in southeast corner - 0.6 acres

Slide 23


BSA

On an approximate 5.5% slope south

Rock 3’-4’ below the surface

All temporary supports must be removed completely

after project completion

Area must be restored to original condition

Slide 24


Contract Document Requirements - Submittal

Provisions based on templates from FHWA and other

States

Heavy Lift System Details

Contingency Plan

Temporary Supports (BSA)

Monitoring System and Tolerances

Schedule

Slide 25


Installation - After existing structure removed,

install Precast Bent Cap

Grouted Couplers

Corrugated Metal Pipe (CMP) Pocket (Preferable)

Slide 26


CMP Pocket

Slide 27


WB Installation – Fairly “Conventional” for SPMT

Slide 28


Backfill behind Wings and Cap (flowable fill)

Precast Approach Slabs

Full approach slab with concrete transitions 209 k

Currently shown as three pieces with Transitions (75 k,

45 k, 45 k)

Each concrete transition 8 k

Closure pours between sections and between abutment

and approach slab

Roadwork and Appurtenances

Slide 29


EB Installation – More Complicated

Slide 30



Slide 31



Bridge Rail may be left off during move, but other

precautions must be made

Other than the actual installation, remainder of

the activities same as WB

Each installation needs to be completed in less

than the allowable closure time

Slide 32

Construction Staging - Slide

Contract Document Requirements - Submittal

Provisions based on templates from FHWA and other

States

Contingency Plan

Monitoring System and Tolerances

Schedule

Slide 33


Existing Bridges Built too Close Together

Causes 1 lane in each direction to be closed in Phase III (A+B)

Slide 34


1’-7 ½” Clearance between Existing and Proposed

Slide 35


End Diaphragm set up to allow for 3 Slide Methods

Temporary Slide Shoe with Track

Slide on Teflon Bearings

Slide on Rollers

Slide 36


End Diaphragm set up to allow for 3 Slide Methods

Temporary Slide Shoe

Slide on Teflon Bearings Slide on Rollers

Slide 37


Installation

Once Existing Bridge is removed, slide new WB

superstructure into place

It is important to have a system that is capable of

pushing and pulling in case complications arise during

installation

Install Temporary Shoring as required

Backfill behind diaphragm

Slide 38


Install Temporary Shoring and Wings

Slide 39


Install Temporary Shoring and Wings

Currently shown as MSE Wall

Precast

Concrete?

Slide 40


Precast Approach Slabs

Roadwork and Appurtenances

Repeat for EB Bridge

Each installation needs to be completed in less

than the allowable closure time

Slide 41

Foundation

Planned to be built while existing bridge is in

service

To minimize foundation size, looking at ways of

limiting horizontal force on abutments

MSE with straps attached to abutment

Expanded Polystyrene Blocks (Geofoam)

Cellular Concrete Fill

Constructability concerns (access)?

Slide 42

Foundation

Currently two options shown

Spread Footings

Main concern is depth of excavation under bridge and

backslope into existing end bent

Temporary shoring feasible under bridge

Slide 43

Foundation

Excavation

Slide 44

Foundation

Micropiles

Logical Choice

Current Provision is as a “Design Build” Item

Provide two configurations with loads and Contractor

designs final configuration

Max Pile Load = 400 kMin Pile Load = -50 k

Max Pile Load = 200 kMin Pile Load = 0 k

Slide 45

Foundation

Micropiles - Testing

Two Verification Tests

Proof Test on 5% of piles

Testing applies actual loads to installed piles to test

grout strength and capacity

Micropile Casing

Buy America Clause needs to be satisfied

Mill Certification is required

Slide 46

Foundation

Third Option – Drilled Shaft with Straddle Bent

Conventionally Reinforced Straddle Bent

Still need to determine if viable option due to concrete

shrinkage between shafts

May require Straddle Bent to be built first and then

connected to drilled shafts

Slide 47

Foundation

Third Option – Drilled Shaft with Straddle Bent

Slide 48

Foundation

For Spread Footing and Drilled Shaft Option,

abutment would go full width (SPMT and Slide)

For Micropile option with SPMT, median may use

MSE walls with pile sleeves for future widening

Slide 49

Wingwalls and Closures

Main concern is time within the closure period

All options are proposing MSE Walls for the outer

wings

Precast concrete or MSE for Median wall closure?

Precast concrete or MSE for Wing Closure?

Slide 50

Wingwalls and Closures

MSE or Precast Concrete

Wing angle cause access concern?

Slide 51

Specialty Item Payment

Goal is to get usable information for future

projects

SPMT – Payment separated

Engineering

Temporary Substructure and BSA

Installation and other items

50% payment after first move. Remainder after second

Slide 52



projects

Slide – Payment separated

Engineering

Installation and other items

50% payment after first move. Remainder after second

Slide 53



projects

Micropile

Testing

Installation

All payment made after work completed

Slide 54

Contractor Information

Prequalification is required for this Project

http://www.in.gov/indot/2740.htm

Slide 55

Closing Comments

Current Design Plan Status approximately 60%

Complete

Plan Development Scheduled for Completion

October 17, 2016

Anticipated Letting Date February 8, 2017

WE APPRECIATE ANY FEEDBACK TO HELP MAKE

THIS A BETTER PROJECT!!

Slide 56

Closing Comments

QUESTIONS/COMMENTS?

Topics

Barrel Drop versus TTB during Phase I & II

Slide Option – 1’-7 ½” clearance between bridges

Precast Concrete Closures or MSE

Excavation/backfill for new abutment (shoring)

Slide 57

Future Questions/Comments

Additional Questions/Comments can be sent to the

INDOT Project Manager until 5:00 p.m. 3/18/2016.

Comments and Responses will be compiled and put

on the website for the project

[email protected]

http://www.in.gov/dot/div/contracts/abc/i70/i70.htm

Slide 58

i-70 over sr 121 contractor meeting - indiana...mar 04, 2016 · pre-bid meeting march 4, 2016...

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